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Finding the Fourth Proportional to 272,033.60, 408,049.80 and 72,354.02

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Solution

The fourth proportional to 272,033.60, 408,049.80 and 72,354.02 is: 108,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,033.60 : 408,049.80 = 72,354.02 : x
  2. Step 2: Convert to fraction form
    272,033.60/408,049.80 = 72,354.02/x
  3. Step 3: Cross multiply
    272,033.60x = 408,049.80 × 72,354.02
  4. Step 4: Simplify right side
    272,033.60x = 29,524,043,390.20
  5. Step 5: Solve for x
    x = 29,524,043,390.20/272,033.60
  6. Step 6: Final answer
    x = 108,530.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.